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<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=941830
-->
<head>
  <meta charset="utf-8">
  <title>asm.js browser tests</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
  <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=941830">asm.js browser tests</a>
  <p id="display"></p>
  <div id="content" style="display: none"></div>
  <pre id="test"></pre>

  <script>
  var jsFuns = SpecialPowers.Cu.getJSTestingFunctions();

  function runTest() {
      var asmjsCode = "function f() { 'use asm';";
      for (var i = 0; i < 5000; i++)
        asmjsCode += "function g" + i + "() { return " + i + "}";
      asmjsCode += "return g42 }";
      ok(asmjsCode.length > 100000, "code is long enough to definitely hit the cache");

      var workerCode = asmjsCode;
      workerCode += "if (f()() !== 42) postMessage('fail'); else postMessage('ok');";
      workerCode = 'var code = "' + workerCode + '"; eval(code); eval(code)';
      var workerBlob = new Blob([workerCode], {type:"application/javascript"});

      var mainCode = asmjsCode;
      mainCode += "ok(jsFuns.isAsmJSModuleLoadedFromCache(f), 'f is a cache hit')\n";
      mainCode += "var g42 = f();\n";
      mainCode += "ok(jsFuns.isAsmJSFunction(g42), 'g42 is an asm.js function');\n";
      mainCode += "ok(g42() === 42, 'g42 returns the correct result');\n";
      mainCode += "SimpleTest.finish();\n";
      var mainBlob = new Blob([mainCode], {type:"application/javascript"});

      var w = new Worker(URL.createObjectURL(workerBlob));

      var received = 0;
      w.onmessage = function(e) {
          switch (received) {
            case 0:
              ok(e.data === "ok", "Received first message");
              received = 1;
              break;
            case 1:
              ok(e.data === "ok", "Received second message");
              received = 2;

              var script = document.createElement('script');
              script.src = URL.createObjectURL(mainBlob);
              document.body.appendChild(script);
              break;
            default:
              throw "Huh?";
          }
      }

      SimpleTest.waitForExplicitFinish();
  }

  if (!jsFuns.isAsmJSCompilationAvailable()) {
      ok(true, "isAsmJSCompilationAvailable is false, skipping this test!");
  } else {
      runTest();
  }
  </script>

</body>
</html>
